Egg carton



Dec. 29, 1953 Filed May 14, 1949 l JNVENTOR.

@2ML/Z# wf Dec. 29, 1953 M. BURGER 2,664,233

EGG CARTON Filed May 14. 1949 3 Sheets-Sheet 2 IN VEN TOR.

Dec. 29, 1953 M. BURGER 2,664,233

EGG CARTON Filed May 14, 1949 3 Sheets-Sheet 3 I INVENTOR. Har/2 ufgef Patented Dec. 29, 1953 EGG CARTON iidartin I Surger,y Morris, Ill., assignor to General 'Package Corporation, a corporation of Delaware l Application May 1i,1949,'seriei1s0.93,395

(c1. 22a-esl 19 Claims.

This invention relates .generally to an improved bottom supporting structure for collapsible cellular egg cartons of the type shown infl'royl; Patent No. 1383,39?, of December AY2J 19.3.0,

It is a general obiectof the invention to pro- 1 vide a fololable paperboard egg carton having a medial longitudinal partition and a plurality of are bendable. at an. anglo tothe oross partitions to interengage withr and beneath the longitudinal partition flaps to braee and look the oross partitions in erected condition, to vertically sustain the longitudinal partition, and vto strengthen and stiien the carton generally.y

"fet another ,object is to provide a carton of the type characterized by opposed front and rear walls, a bottom and longitudinal partition forming section integrally ,connecting the Walls, and transverse partitions Vliingedly connected tothe walls and swingable to upright position therebetween, in which carton said transverse and longitudinal partitions nave the aforesaid type of integral interengaging lian or' tab elements, and 'lvliiob the transverse partitions are received and braoed by `the bottoni and longitudinal partition forming section in an improved mannei.

The ioregoing statements are `indicative in a general Way of the nature of the invention, but vother and more speoio obieots will beyapparent to those skilled the art upon a full linderstanding of the oonstrootion and yoperation of Two embodiments .of the invention are pre-l sented herein Afor the purpose of illustration7 but it Will be appreciated that the invention is susoeptible of inoorporation in still v.other modiiied forms Corning eduallywitbin the scope of the appended .claims Fig. 3 yis a somewhat enlarged, fragmentary View in longitudinal, vertical cross section along line 3-3 of Figs` 2 .and fl, illustrating the oper-I ative relatonship of the coacting, partition locking and bracing naps o the carton and also snowing the braced relationship of the Carton cross partitions and bottoni;

Figs. e andy 5 are, respectively, views in transf verse vertical section along section lines 414 and 5*-5, resp.eotivelyy of Fig. 3;

Fig. 6 a plan vie-vv of a blank employed ,in making a modieol, divisible type .Carton embodying tbe invention:

' Fig. 'l is a fragmentary plan vievvy generally similar to Fig. 2, of the modined embodiment; and

8 is a fragmentary View in vertical longitudinal section along line ,8 3 of Fig. 7. 1

A substantial strengthening of the carton dis.- losed herein is accomplished by the provision of .coacting bendable tab or flap elements which are integral with the respective transverse and longitudinal partition members of the carton, these elements interengaging with one another under their inherent resilience to lock the partition members in proper position. The interlock thus produced not only servesto hold the cross partitions in proper upright position, resisting relative movement ofthe parts, but also enables the load onthe carton bottom to be partially distributed through the locked longitudinal partition member to the various cross partition menfibers,v the bottoms of which rest on a supporting surface. The strength of the carton as a Whole is thus increased. vA further feature of laterally bracing the cross partitions at their points of penetration of the carton bottom stiilens the cross partition to enable them to still botte sustain vertical load.

Referring to Figs, l and 2 `of the drawings, showing the invention as embodied in a nondivisible .type carton, the carton is fabricated from a vone-piece blank of a suitable flexible paperboard stoclg, Whichis died out in a gener ally rectangular'outline. This blank is creased to denne an intermediate bottom `and longitudinal partitionfforining section I9, and this section is in turn medially subdivided by a central, longitudinally extending fold line il into two identical panels I2., I3. Section ill is joined by longitudinal Grease lines i4, `l5 at respeoti-ve carries a foldable locking ap on its outer edge.

The rear wall Il has a cross partition panel 2e flexibly connected to its outer or upper margin by a series of longitudinally spaced and aligned crease lines 2i; it is similarly connected along its opposite margin to a terminal glue flap 22. Panel 2G is subdivided by slitting and creasing into a plurality of like cross partitions 23. These cross partitions are connected to the front wall il and to the rear wall I6 (to which the glue flap 22 subsequently is adhered in assembling the carton, as described in the above mentioned Troyk patent) by means of the integral triangular webs or gussets 22. The latter are creased at 25 for vertical swinging movement to the operative, upright position illustrated in Fig. 2.

The cross partitions 23 are adapted to be medially folded upon themselves about the longitudinally extending, aligned creases 26 in panel 25.3, in the iiat, knock-down condition of the carton, in the manner illustrated in the Troyk patent. They are of forked outline, the free marginal edge thereof being shaped to provide mutually inturned hook formations which are designated 2l. These formations are adapted to be inserted in openings 28 in the longitudinal partition 29 which is formed when the section l0 is reversed about its medial fold line l and disposed in the angled, upwardly convergent positition shown in Figs. 4 and 5. The character of the openings 28 will be described later in greater detail. Thus inserted, the h-coks 27 are adapted to assist in vertically sustaining the medial, two-walled longitudinal partition 29.

Referring again to the blank shown in Fig. l, instead of slotting or entirely removing a portion of the material of cross partition panel 2B immediately to one side of the cross partition hook formations 2l, these zones are each provided with parallel transverse slits 3l), 3| of inequal length which intersect the longitudinal medial creases 26, the respective sets of slits 3) and 3l extending equidistantly on either side of i the creases. Short longitudinal slits 32 coinciding with creases 26 extend between and connect the mid-points of slits 38, 3i, and angled scores or creases 33 connect their respective ends. These provisions dene a pair of laterally bendable flaps 3d, in the fork of each of the cross partitions 23, which are adapted to be bent about scores 33 from their normal positions, coplanar with the partitions, to rearward positions at a substantial angle thereto, as illustrated in Figs. 2 through 5. This takes place when the carton is erected from a flat, knocked-down condition to its operative, locked, egg receiving condition.

Again referring to Fig. l, the bottom and longitudinal partition forming section or panel l0 is also eut and creased to provide bendable flaps or tabs 36 which are adapted to interlock with the viiaps 34; the longitudinal spacing of the respective sets of flaps being the same. For this purpose, obtusely angled, C-shaned slits 31 are formed to intersect the longitudinal medial crease of the panel, these slits terminating at their opposite ends in rearward extensions 38. Transverse creases 39 connect the termini of the extensions and the longitudinal slits 40, the latter coinciding with medial crease H and serving to separate the resultant naps 36 from one another.

Flaps 36 are swung about crease 39 and iiared outwardly from the longitudinal partition 2S during the operation of shaping the latter to its iinal, inverted V form. They thus engage the rear surface of cross partitions 23 when the latter are thrust into the bottom openings 28 referred to above. The base of the fork of the cross partitions adjacent their hooks 2l' is received in the openings 4I which are left when flaps 36 are thus bent to partition engaging position.

The above described operations of bending flaps 34 and 36 are performed automatically in apparatus for erecting the carton in timed relation to the swinging of the cross partitions 23 to upright parallel positions, the shaping of longitudinal partition 29, and the engaging of the latter with the cross partitions. These operations need not be described in detail; however, it will be noted that the proportioning and locating of flaps i, 35 are such (see Figs. 3, 4 and 5) that the former snap beneath the latter into intersecting, substantially normal supporting engagement therewith.

In erected condition, the partitions 23 extend substantially above the triangular hinge webs 2i, so as to sustain the carton cover I9, and the lower edges thereof are approximately coplanar with the bottom margins of the carton walls i6, l?, thus serving as additional supporting feet for the carton.

By means of the interlocked relationship of the re^pective flaps 34, 36, a substantial share of the load on the bottom of the carton is distributed from the longitudinal partition 29` through the iiaps to the cross partitions 23. This insures the eii'icient performance of a function also intended to be performed by the cross partition hooks 21. A substantial load transferred to the cross partitions has a tendency to buckle the latter, but this tendency is resisted by the rear bracing engagement of the flaps 36 on the cross partitions, as well as by the further provisions in the bottom section of the carton, adjoining the partition receiving openings 28.

Openings 28 are provided by slitting and creasing the carton bottom and longitudinal partition section lll. Thus pairs of transverse slits i4 are formed in said section on either side of and normal to its medial crease Il. These slits are laterally aligned with the cross partition hinge creases 25. Angled end slits l5 extend across the opposite termini of slits 44 in a fashion to dene bendable tabs 46, 46 at either side of said respective slits M. In the operation of thrusting the parallel cross partitions 23 into the bottom section I il, the tabs are dellected downwardly, as illustrated in Figs. 3, 4 and 5, to expose openings 28. They then frictionally engage opposite sides of the cross partitions 23 to 'x-f. exert a bracing action on the latter in the Zone at the lower end thereof. If desired, the tab 45 may be rendered more ilexible than tab A6 by providing a creased fold line 4l connecting the ends of slits 45.

The present carton is strongly resistant to displacement of its parts from nal erected condition, due primarily to the interlocking of flaps 345 and 3S as described. This interlock serves to better distribute and withstand loads and stresses imposed on the carton and, in addition, the cross partitions 23 are rearwardly braced by the iiaps. The rigidity and column strength of the cross partitions are increased, since their tendency to bend or collapse, either about a horizontal axis or about their medial creases 2S,

=is .counteracted by-the naps .36 `bearing against their creased area. A like -actioniiszperformed at :a ',lowerfpointbythe @force couple ,which iis irepresented bythe bottom lsection tabs 46, .45 'bear-n ing ontlie cross partition 23.` The several cross partitions are held by flaps v'313, 33 and tabs :'46,

d6 againstshifting longitudinally of the carton in either direction, again insuring maximum Tcolumn strengthto sustain vertiCallOad. Moreover, in view `of the 'fact that fthe grain of fthe `'material of `partitions `23 :is disposed .in kthe 'hori- `Zontal direction across said partitions, the :tendency of the cross partitions to buckle .arounda horizontal Vaxis under'A compressive stress yis "counteractedby the tabs fs, 45".extending angularly 'across the grain of the partitions.

When the flaps 36 are distended outwardly,

the space `across their upper portion, as I.shown inlig. 4, is :less .than the space across their'lower portion. In lerecting the carton, ythe cross parf continues, naps '3d snap over the upper edges of naps 34 as the latter lie alongside -the longitudinal partition 29, thereby forming an effective suspension of the bottom section in cushion forming position.

During this inward movement of the bottom, the hooks '21 also are interlocked with the bottom section. These hooks and the flaps 34 and 36 form a four-way interlock of each partition lwith the ibottom section. The `flaps 34 and 36 vare so effectivethat in some instances it will be found desirable to omit hooks 21, as in thecase Vof cartons of `the inverted cell type in which a split cell isremployed interiorly of the carton.

The various possible modifications of the above structure are intended to be covered in the appended claims.

Figs. 6, .7 and 8 illustrate a modied adaptation -of the provisions of the invention to a divisible type carton, adapted to be subdivided along a medial, transversely extending weakened line.

The blank 5!) from which the modified cartonis fabricated is generally similar to the blank shown in Fig. 1 of the drawing, differing therefrom -in that the cross partitions 23 are disposed in sets of four each, facing in opposite direction with relation to a medial, transverse weakened `line of perforation 5| which extends across the carton blank. Said sets are swingable `in opposite directions toward erected parallel relation to one another, and the two oppositely swingable partitions which are located immediately adjacent the central perforated line 5l are designated 52. The partition section 2e in which the cross partitions 52 are disposed is provided with a transversely extending slit 53 .in alignment with the line of weakening perforations 5|. Alike slit 53 is `forrnedacross thebottom and longitudinal partition forming panels l2, I3.V Opposed, V-shaped slits 54 are `formed adjacent the opposite ends of the slit 5 3, intersectingthe latter at their apex. Similarly, a pair of longitudinal.-

lv opposed Yslits .55 are provided in generally parallelgrelation vto the slit 53, on opposite *,Sides y lthereof and located adjacent the longitudinal mid-point Aof the section or panel 2Q. `Perforations or Vscoresti connecting the respective vsets of slits 5l! `and 55 enable the'bending of -a pair Wof wing elements 5l which are dened 'by these slits 5.4, .'55 and scoring .56 downwardly vwith 1re"- ,lation to ktheplaneofthe paneliZ, into vside-bifside .engagement'with the .inner ,sidesv ofpartitions 52.

Flaps 34 are -formed in the cross partitions 52 fby provisions identical with lthose illustrated and ,described in `rconnection with `the 4first Vembodi- .mentof the invention, -hence Adesignated by corresponding reference numerals.

The .panels l2, `I3 Ivof the blank 5() are slitted :and .creased to provide trapdoor flaps 45, dii similar to those described above, but arranged v,oppositcly of 4one another. The panels l2, I3 .are also provided with trapdoor type cross partition receiving and .bracing -flaps 58 adjacent .and on .either Iside `of the transversely extending weakening line 55. These flaps are so disposed as .to swing. downwardly and away from the .weakened line vwhen the cross partitions 52 are inserted in the openings which result from the displacement .of the 11ans .58.

Opposed, generally Ceshaped slits 58 are 'formed in -the .panels 12, .IS oneither side of slit 53' .and vintersect .with the medial, longitudinally extending .crease il of the panels. yShort slits S0 extend ,from opposite-termini of the shaped slit .59 .and cooperate with an intermediate -slit 5,9 .todeiine fthe -lexiblertabs or flaps 5i. These correspond generally to the flaps @E in their Shapeand intended functions. They are bendabledownwardly in oppositedirections from the direction of bending of the .respective sets of partitionlockingiiaps lon-,either side of the weakened `division line 5I.

`Inerecting the carton from the blank of Fig.

6, .the same Ygeneral procedures are performed.

yas 4are :involved Jinthe completion and erection `of the iirst described embodiment. Partitions 222, .52 are swung 'to cparallel erected position and the wings A5'! of partitions 52 vare then swung downwardly to the position-illustrated in Fig. 8. The aps 34 of -thelcross partitions 52 immediately adjoining `the weakened line 5i are deflected in opposite directions whereby to ulti `mately 'lie along :the opposite sides of the longitudinal partition 12g, and the bottom and longi- Atudinal partition 1forming panels I2, i3 are folded upwardly along their medial crease Il, the hook portions oi' the cross partitions 52 being engaged `in the bottom openingsZ. Finally, the coacting llaps '34 36 and 34, 65 are interlocked in 4the positive, supporting manner described above. 'The portions '52 ,of `the panels i2, Yi3 which lie ,between the slitted wings Si are thrust between the wings 5l which lie along the sides 0i .the Vcentralcross .partitions 52, as shown in Fig. Spend their natural resilience causes these wings to engage snugly with the portions 62 within the Jongitudinal partition The ccacting fiaps .313, i6 kprovide a positively interlocked :relationship of the cross partition struc- .ture andthe longitudinal partition structure, ex-

actly as described above in connection with the ilrst embodiment.

When the carton illustrated in Figs. `'I and 8 is subdivided along the weakened division line 5i, the resultant, haii denen capacity cartons are just as strongly braced `as the original, dozen capacity carton, it being noted that the interloeked -cross partition and longitudinal partition structure of the subdivided carton unit is the saine at either end of the latter.

'l claim.:

L1. A ioldable yegg carton comprising a bottom,

front and rear wall connected 'to said bottom, an upstanding partition longitudinally sub-dividing the interior of the carton between said walls, a plurality of cross partitions positionable in upright position between said Walls, said first named partition having longitudinally spaced elements projecting outwardly from a side surface thereof and at an angle to said surface to engage a surface area of said respective cross partitions in said upright position of the latter, said elements being hinged to said longitudinal partition by crease lines and being disposed in approximately side-by-side, surface contacting relation to said cross partitions when the carton is erected, and means connecting said cross partitions to said elements to vertically sustain said longitudinal partition, said means comprising elements integrally hinged to said cross partitions and engaging said longitudinal partition elements from beneath the same.

2. A foldable egg carton comprising a bottom, front and rear walls connected to said bottom, an upstanding partition of inverted V cross section longitudinally sub-dividing the interior of the carton between said walls. a plurality of cross partitions hingedlv connected to and positionable in upright position between said walls, said nrst named partition having longitudinally spaced elements proiecting outwardly from a side surface thereof and at an angle to said surface to engage a surface area of said respective cross partitions in said upright position of the latter, said elements being hinged to said longitudinal partition by crease lines and being disposed in approximately side-by-side, surface contacting relation to said cross partitions when the carton is erected, and means connecting said cross partitions to said elements to vertically sustain said longitudinal partition, said means comprising elements integrally hinged to said cross partitions and engaging said longitudinal elements from beneath the same.

3. A foldable egg carton comprising a bottom, front and rear walls connected to said bottom, an upstanding longitudinal partition sub-dividing the interior of the carton between said walls, and a plurality of cross partitions hingedlv connected to said walls for movement to upright position therebetween, said longitudinal partition having longitudinally spaced elements projecting outwardly from a side surface thereof and at an angle to said surface and said cross partitions each having an element offset from the plane thereof and disposed in interlocked, upwardly contacting engagement with one of said first named elements when the carton is erected, said respective elements being hinged by crease lines to said respective cross and longitudinal partitions.

4. A foldable egg carton comprising a bottom, front and rear walls connected to said bottom, an upstanding longitudinal partition sub-dividing the interior of the carton between said walls, and a plurality of cross partitions hingedly connected to said walls for movement to upright position therebetween, said longitudinal partition having longitudinally spaced elements projecting outwardly from a side surface thereof and at an angle to said surface and said cross partitions each having an element oifset from the plane thereof and disposed in interlocked, upwardly contacting engagement beneath one of said rst named elements and in load receiving relation to said longitudinal partition when the carton is erected, said respective elements being hinged by crease lines to said respective cross and longitudinal partitions.

5. A foldable egg carton comprising front and rear walls, a bottom connected to said walls including an upstanding longitudinal partition of inverted V cross sectional shape disposed between and paralleling said walls, flaps spaced along and bendably connected to said partition for disposition at an angle thereto, and a plurality of cross partitions hingedly connected to said walls for movement therebetween to upright position normal to said longitudinal partition, said cross partitions having integral bendable ilaps hinged thereto by creases, said cross partition flaps being disposed in interlocked, upwardly contacting engagement beneath said rst named flaps when the carton is erected.

6. A foldable egg carton comprising front and rear walls, a bottom connected to said walls including an upstanding, two walled longitudinal partition between and paralleling said walls, flaps spaced along and bendably connected by creases to said partition for disposition at a substantial angle transversely thereof, and a plurality of cross partitions hingedly connected to said walls and swingable to upright position normal to said longitudinal partition, said cross partitions having integral flaps hinged thereon, by creases, said cross partition naps being cifset about said creases relative to said cross partitions to position adjacent the sides of said longitudinal partition and in interlocked, upwardly contacting and sustaining engagement with said first named flaps when the carton is erected.

7. A foldable carton comprising front and rear walls, a bottom connected to said walls including an upstanding longitudinal partition sub-dividing the space between said walls, integral flaps disposed along said partition and bendably connected thereto by creases for disposition at a substantial transverse angle from at least one side thereof, and a plurality of cross partitions hingedly connected to said walls for movement to operative, upright position normal to said longitudinal partition, said cross partitions having integral flaps thereon bendably connected thereto by creases for disposition out of the plane thereof, said cross and longitudinal partition aps having interlocked, upwardly contacting and transversely intersecting engagement to sustain said longitudinal partition and brace said carton when the carton is erected, said bottom being provided with cuts receiving said cross partitions in the operative position of the latter and having tabs adjoining said cuts which are adapted to engage a side surface of said cross partitions.

8. A foldable egg carton comprising a bottom, front and rear walls connected to said bottom, an upstanding longitudinal partition sub-dividing the interior of the carton between said walls, and a plurality of cross partitions hingedly connected to said walls for movement to upright position therebetween, said longitudinal partition having longitudinally spaced elements bendably connected by creases and projecting outwardly from a side surface thereof and at an angle to said surface and said cross partitions each having an element bendably connected thereto by a crease and offset from the plane thereof in interlocred, upwardly contacting and sustaining engagement with one of said first named elements when the carton is erected, said carton being provided with a transversely eX- tending, medially disposed weakening line therewir across to lfacilitate, sub-division thereof, 'and having a pai-r of said cross partitions located closely adjacent and on opposite sides of said weakening lin'e.

9. A fold'abl'e 'egg carton `comprising a bottom, front and rear walls connected to said bottoni, an upstanding longitudinal partition sub-dividingy the interior of the carton between said walls, `and a plurality of cross partitions hingedly connected to said walls for movement to upright position therebetween, said longitudinal partition having longitudinally spaced elements bendably connected by creases and projecting outwardly from a side surface thereof and at 'an angle to said surface and said cross partitions each having an element bendably connected thereto by a crease and from the plane thereof 'and disposed in interlocked, upwardly contacting and sustaining engagement with one of said rst named elements when the carton is erected, said carton being provided with 'a transversely extending, medially disposed weakening line thereacross to facilitate sub-division thereof, and having a pair of said cross partitions located closely adjacent and on opposite sides of said weakening line, the respective oiiset elements of said pair oi partitions extending in opposite directions, with reference to said weakening line between said partitions, for said interlocked engagement with 'said longitudinal wpartition elements.

10. A foldable egg carton comp-rising front and rear walls, a bottom connected to said walls including an opstanding, two-walled longitudinal partition between and paralleling said walls, naps spaced along and bendably connected by creases to said partition for disposition at a substantial angle transversely thereof, and a plurality of cross partitions hingedly connected to said walls and swingable to upright position normal vto said longitudinal partition, said cross partitions .having integral flaps hinged thereon by creases, said cross partition flaps being orfset relative to said cross partitions to position adjacent the sides of said longitudinalpartition and in interlocked, upwardly contacting and sustaining engagement with said rst named flaps when the carton is erected, said carton being provided with transversely extending, medially disposed weakening line thereacross to facilitate sub-division thereof, and having a pair of said cross partitions located closely adjacent and on opposite sides of said weakening line.

11. A foldable egg carton comprising front and rear walls, a bottom connected to said walls including an upstanding, two-walled longitudinal partition between and paralleling said walls, flaps spaced along and bendably connected by creases to said partition for disposition at a substantial angle transversely thereof, and a plurality of cross partitions hingedly connected to said walls and swingable to upright position normal to said longitudinal partition, said cross partitions having integral flaps hinged thereon by creases, said cross partition flaps adapted to be bendably offset relative to said cross partitions to position adjacent the sides of said longitudinal partition and in interlocked, upwardly contacting and sustaining engagement with said iirst named naps when the carton is erected, said carton being provided with a transversely extending, medially disposed weakening line thereacross to facilitate sub-division thereof, and having a pair of said cross partitions located closely adjacent and on opposite sides of said weakening line, the respective offset aps of said pair of partitions extending in opposite direc- 10 tions, with reference to said weakening line between said partitions, for said interlocked engagement with said longitudinal partition flaps.

'12. A paperboard Aegg carton comprising front and rear side walls, a bottom and longitudinal partition section connecting said walls and providing a longitudinally extending partition of inverted V-shaped sub-dividing the space between said walls, and a plurality of cross partitions hingedto said front and rear walls for disposition in parallel relation to one another in penetrating engagement with Said carton bottom, said cross partitions being provided with integral flaps hinged thereto by creases and bendable out of the plane of said partitions and the longitudinal partition -having flaps which are hinged thereto 4by 'creases and bendable laterally at an angle thereto', said cross partition flaps being disposed along the opposite side of said longitudinal partition in substantially normal relation to the cross partitions and in interlocked, upwardly contacting and sustaining vertically sustaining engagement with the laterally bent iiaps of said longitudinal partition when the carton is erected.

13. A paperboard egg carton comprising front and rear 'side walls, a bottom and longitudinal partition section connecting said walls and providing a longitudinally extending partition of inverted V-shape sub-dividing the space between said walls, and a plurality of forked cross partitions hinged to Said front and rear walls for disposition in parallel relation to one another in penetrating engagement with said carton bottom, said cross partitions being provided with integral flaps adjoining the fork thereof which are hinged thereto by creases and bendable out oi' the plane of said partitions and the longitudinal partition having flaps which are hinged thereto by creases and bendable laterally at an angle thereto, said cross partition flaps being disposed along the opposite side of said longitudinal partition in angular relation to the cross partitions and in interlocked, upwardly contacting and sustaining vertically sustaining engagement with the laterally bent flaps or" said longitudinal partition when the carton is erected, said cross partitions having hooks adjacent said iorks which are sustainingly engageable with said partition section.

14. A paperboard egg carton comprising front and rear side walls, a bottom and longitudinal partition section connecting said walls and providing a longitudinally extending partition of inverted V-shape subdividing the space between said walls, and a plurality of cross partitions hinged to said front and rear walls for disposition in parallel relation to one another in penetrating engagement with said carton bottom, said cross partitions being provided with integral naps hinged thereto by creases and bendable out of the plane ol said partitions and the longitudinal partition having iiaps which are hinged thereto by creases and bendable laterally at an angle thereto, said cross partition iiaps being disposed along the opposite side of said longitudinal partition in angular relation to the cross partitions and in interlocked, upwardly contacting and sustaining vertically sustaining engagement with the laterally bent flaps of said longitudinal partition when the carton is erected, said bottom having bendable flaps laterally engaging said cross partitions to brace the latter at their points or penetration of the bottom.

15. A paperboard egg carton comprising front and rear side walls, a bottom and longitudinal partition section connecting said Walls and providing a longitudinally extending partition of inverted V-shape sub-dividing the space between said walls, and a plurality of forked cross partitions hinged to said front and rear walls for disposition in parallel relation to one another in penetrating engagement with said carton bottom, said cross partitions being provided with integral flaps adjoining the fork thereof which are hinged thereto by creases and bendable out of the plane of said partitions and the longitudinal partition having aps which are hinged thereto by creases and bendable laterally at an angle thereto, said cross partition flaps being disposed along the opposite side of said longitudinal partition in angular relation to the cross partitions and in interlocked, upwardly contacting and sustaining vertically sustaining engagement with the laterally bent aps of said longitudinal partition when the carton iserected, said cross partitions having hooks adjacent said forks which are sustainingly engageable with said partition section, said bottom having bendable flaps laterally engaging said cross partitions to brace the latter at their points of penetration of the bottom.

16. A foldable paperboard egg carton comprising a bottom, front and rear walls connected thereto, an upstanding longitudinal partition connected to said bottom and longitudinally subdividing the interior of the carton between said walls, and a plurality of cross partitions positioned in upright position therebetween, said cross partitions having aps integrally hinged thereto and deflected out of the respective planes thereof, said longitudinal partition also having flaps integrally hinged thereto and deflected out of the plane of the surface to which they are hinged to expose openings receiving portions of said cross partitions, the flaps of said cross partitions in deflected position engaging a at surface of said longitudinal partition and said longitudinal partition flaps engaging flat surfaces of said cross partitions. Y

17. A carton in accordance with claim 16, in

l2 which said longitudinal partition aps are dea ected upwardly relative to that partition for engagement with said cross partitions, and in which said deflected cross partitions have surface contact with said longitudinal partition over substantial portions of their respective areas.

18. A foldable paperboard egg carton comprising a bottom front and rear walls connected thereto, an upstanding longitudinal partition of inverted V-shaped cross section connected to said bottom and longitudinally sub-dividing the interior of the carton between said walls, and a plurality of cross partitions hinged to said walls and positioned in upright position therebetween, said cross partitions having flaps integrally hinged thereto and deflected out of the respective planes thereof, the inverted V surfaces of said longitudinal partition also having flaps integrally hinged thereto and deflected out of the plane of the surface to which they are hinged to expose openings receiving portions of said cross partitions, the flaps of said cross partitions in deflected position engaging said surfaces of said longitudinal partition and said longitudinal partition iiaps engaging flat surfaces of said cross partitions.

19. A carton in accordance with claim 18, in which said longitudinal partition flaps are deeoted upwardly relative to that partition for engagement with said cross partitions, and in which said deflected cross partitions have surface contact with said longitudinal partitions over substantial portions of their respective areas.

MARTN BURGER.

References Cited in the le of this patent UNITED STATES PATENTS Number Name Date 2,321,209 Holwick June 8, 1943 2,326,244 Moore Aug. 10, 1943 2,333,181 Inman Nov. 2, 1943 2,374,382 Rutledge Apr. 24, 1945 2,410,486 Evans Nov. 5, 1946 

